The vertical circumrotated grain remover which is made according circumrotated stream separation theory can separate the liquid and solid away by
rotating the liquid. It is one of the item in the national most important environment care projects of 1999, It is fix on the pipe well, evase well, leaking canal to get rid of grains when absorbing
water from the field or from the building. It can get rid of grains from the water, and keep
the water pipe and pool expediting. It has been collected into the water supply and eject manual.
( page733-735 in Volume 10. )